Results 31 to 40 of about 113,666 (147)

The co-optimization of floral display and nectar reward

Journal of Biosciences, 2009
In most insect-pollinated flowers, pollinators cannot detect the presence of nectar without entering the flower. Therefore, flowers may cheat by not producing nectar and may still get pollinated. Earlier studies supported this 'cheater flower' hypothesis and suggested that the cost saving by cheater flowers could be the most predominant selective force
Prajakta V, Belsare, Balasubramanian, Sriram, Milind G, Watve   +2 more
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Contrasting effects of yeasts and bacteria on floral nectar traits [PDF]

Annals of Botany, 2018
Flowers can be highly variable in nectar volume and chemical composition, even within the same plant, but the causes of this variation are not fully understood. One potential cause is nectar-colonizing bacteria and yeasts, but experimental tests isolating their effects on wildflowers are largely lacking.
Vannette, Rachel L, Fukami, Tadashi
openaire   +4 more sources

Green roof effects on floral phenology and floral nectar resources

, 2023
This study investigates the potential for green roofs to support pollinator diversity and abundance in urban ecosystems through the altered floral phenology and floral abundance of plants. I compare floral phenology and the floral abundance of green roof plants to plants grown at grade on the Front Range in Fort Collins, Colorado, and how these changes
Ruszkowski, Kyle M., author, Bousselot, Jennifer, advisor, Hufbauer, Ruth, committee member, Krishnan, Sarada, committee member   +3 more
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Herbivory by a phloem-feeding insect inhibits floral volatile production [PDF]

, 2012
There is extensive knowledge on the effects of insect herbivory on volatile emission from vegetative tissue, but little is known about its impact on floral volatiles.
Webster Ben, Pareja, Martin, Mayon, Patrick, Glinwood Robert, Birkett, M., Birkett, M. A., Pareja Martin, Pickett John, Erika Qvarfordt, Patrick Mayon, Qvarfordt, E., Qvarfordt, Erika, Michael Birkett, Glinwood, Robert, Glinwood, R., Martin Pareja, Mayon Patrick, Pickett, J. A., Ben Webster, Webster, Ben, John Pickett, Pickett, John, Qvarfordt Erika, Robert Glinwood, Birkett Michael, Webster, B., Mayon, P., Birkett, Michael, Pickett, J., Pareja, M., Sveriges lantbruksuniversitet., Qvarfordt, Erika,, Webster, Ben,, Glinwood, Robert,   +33 more
core   +2 more sources

The effect of polyploidy and hybridization on the evolution of floral colour in Nicotiana (Solanaceae). [PDF]

, 2015
Speciation in angiosperms can be accompanied by changes in floral colour that may influence pollinator preference and reproductive isolation. This study investigates whether changes in floral colour can accompany polyploid and homoploid hybridization ...
Taylor, L, Arnold, Sarah E., Arnold, SE, Arnold, Sarah E. J., Chittka, Lars, Chittka, L, Kovařík, A, Le Comber, S., Knapp, S., Baldwin, Ian, Mhiri, C, Verity, Robert, Verity, R, Le Comber, SC, Taylor, Lin, Kelly, L., Le Comber, Steven C., Knapp, Sandra, Knapp, S, Leitch, A.R., Arnold, SEJ, Baldwin, I., Chase, M.W., Chittka, L., Leitch, AR, Leitch, Andrew R., Arnold, Sarah E.J., Mhiri, Corinne, McCarthy, E.W., Chase, Mark W., Kelly, LJ, Taylor, L., Arnold, S.E.J., Chase, M., Kovařík, Aleš, Kovařík, A., McCarthy, E., Leitch, A., Verity, R., McCarthy, Elizabeth W., Dodsworth, Steven, Kelly, L.J., Kelly, Laura J., Dodsworth, S., Mhiri, C., Dodsworth, S, Chase, MW, Arnold, S., Baldwin, I.T., Baldwin, Ian T., Le Comber, S.C., Baldwin, IT, McCarthy, EW   +52 more
core   +1 more source

Impacts of soil nutrition on floral traits, pollinator attraction, and fitness in cucumbers (Cucumis sativus L.)

Scientific Reports, 2022
Annual plants allocate soil nutrients to floral display and pollinator rewards to ensure pollination success in a single season. Nitrogen and phosphorus are critical soil nutrients whose levels are altered by intensive land use that may affect plants ...
Anthony D. Vaudo, Emily Erickson, Harland M. Patch, Christina M. Grozinger, Junpeng Mu   +4 more
doaj   +1 more source

Caffeine in Floral Nectar Enhances a Pollinator's Memory of Reward [PDF]

Science, 2013
Bees Get That Caffeine "Buzz" Caffeine improves memory in humans, millions of whom find that their daily dose enhances clarity, focus, and alertness. The human relationship with caffeine is relatively recent, however, and thus its impact on our brains is likely a by-product of its true ecological role.
Wright GA, Baker DD, Palmer MJ, Stabler D, Mustard JA, Power EF, Borland AM, Stevenson PC   +7 more
openaire   +3 more sources

Floral Trait Variations Among Wild Tobacco Populations Influence the Foraging Behavior of Hawkmoth Pollinators

Frontiers in Ecology and Evolution, 2018
Most pollinators visit flowers in the search of nectar rewards. However, as the floral nectar can often not be directly detected by pollinators, many flower visitors use secondary metabolites such as odor- or taste-proxies to anticipate nectar quantity ...
Alexander Haverkamp, Bill S. Hansson, Ian T. Baldwin, Markus Knaden, Felipe Yon, Felipe Yon   +5 more
doaj   +1 more source

Agronomic Traits in Oilseed Rape (Brassica napus) Can Predict Foraging Resources for Insect Pollinators

Agronomy, 2021
Mass-flowering crops, such as oilseed rape (OSR; Brassica napus), provide pulses of nectar and pollen, helping to support pollinators and their pollination services in agricultural landscapes.
Stacey M. Fairhurst, Lorna J. Cole, Tereza Kocarkova, Catherine Jones-Morris, Andy Evans, Gail Jackson   +5 more
doaj   +1 more source

Floral Rewards: Alternatives to Pollen and Nectar

Annals of the Missouri Botanical Garden, 1981
(Uploaded by Plazi for the Bat Literature Project) In angiospermsselectionhas led to the utilizationof numeroussubstancesotherthanpollenand nectar that help to insure repeatedvisitation by pollinatinganimals. Here, we group the various substancesinto nonnutritiveand nutritiverewardsand discuss withineach groupthe specifickinds that occur.
Simpson, Beryl Brintnall, Neff, John L
openaire   +3 more sources